Automatic stop mechanism for gramophones.



M. A. PUSSONS.

AUTOMATIG STOP MECHANISM FOR GRAMOPHONES.

APPLIUATION FILED 00122, 1909 Mtentedl Nov. 11, 1913.

61 Him/Mu n nan' Tns MINARD ARTHUR POSSONS,

ATENT oniuon.

0F CLEVELAND, OHIO.

Specification of Letters Eatent.

Patented Nov. 11, leis.

Application filed October 22, 1909. Serial No. 524,021.

To all whom it may concern:

Be 1t known that I, MINARD A. PossoNs, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and producer now in usewithout changing anypart thereof. The only addition to the gramophone isthe placing of a small projection on the record.

Another object of my invention is to provide a more simple, cheap andefiective device to accomplish the above results.

In the accompanying drawings: Figure 1 is a side elevation of theordinary reproducer showing my attachment applied and in the positionwhen the reproducer is supported bythe needle on the record. Fig. 2 is asimilar view showing the projection in the act of tripping my device andthe device engaging the record and lifting the reproducer from therecord. Fig. 3 is a similar View to Fig. 1, showing the reproducerraised and the needle clear of the record and having stopped the record,and showing in dotted lines the reproducer swung around for inserting anew needle and showing the device automatically setting itself. Fig. 4

is an enlarged perspective view of my immeans tripped by a smallprojection on the record for raising the needle from the rec 0rd andthen stopping the rotation of the record and the same accomplishedwithout any injury to the record.

My improved means for accomplishing the above results consist of a platei which is of such shape that it can be readily attached to the side ofthe reproducer 1 by means of two screws 5 and 6. The said plate has theupwardly extending arms 7 and 8 having outwardly turned ends 9, whichbear-against the cylindrical portion of the reproducer and whereby theplate is more securely fastened to the reproducer. The plate 4 isprovided with a downwardly extending arm 10, which extends into thebifurcated upper end 11, of the member 12. The said member isintermediately pivoted at 12' to the arm and its lower end is providedwith an enlarged rubber ball-like member 11' which engages the record,and the rubber causing a greater friction on the record as will beherelnafter more fully described.

Pivoted to the plate 4, by means of the screw 6, is an arm 13, whichextends down wardly and has a lower screw-threaded end 14, upon which isthreaded a nipple 15, which can be adjusted on the arm. The nipple is ina position, when the needle 2 is on the record and supporting thereproducer slightly above the record, as clearly shown in Fig. 1.Surrounding the pivot or screw 6, and carried by the plate 4-, 1s acircular cam-portion 16, which allows the arm 13 to swing at a slightangle to the member 12, so as to bring it opposite one side of thebifurcated upper end of the member 12. The arm or trigger 13intermediate its ends is provided with a notch or shoulder 17, intowhich extends the toothed end 18 of one side of the bifurcated end ofthe member 12. The arm v13 when in a vertical position supports themember 12 in a horizontal position by means of the notches 17 andtoothed end 18.

The record 2 011 the inside of the sound grooves is provided with thelug 19, which is preferably formed integral with the record, but whenthe device is to be used for records which were not manufactured for mydevice, the lug can be cemented to the record. As shown in the drawings,the needle 2 is on the outside of the sound box or reproducer, while myattachment is on The machine as shown in Fig. 1, is playing the recordmoving in the direction of the arrow, Fig. 1, and when the reproducerhas been moved inwardly by the engagement of the needle with the soundgrooves, the arm 13 is brought in the path of the lug 19. This moves thearm to the left, as shown in Fig. 2, which releases the member 12 and byforce of gravity the same drops upon the record. By means of the rubbercovering carried thereby the member is moved in a vertical positionlifting the needle from the record. The lower end of the arm beingsquare prevents the member 12 from passing a vertical position and it isthus held in said position. The friction of the rubber of said membercaused by the weight of the reproducer stops the record.

The reproducer turns or revolves in the direction of the arrow, Figs. 1,2 and 3, whereby the needle socket may be brought into a position sothat another needle can be readily inserted. The turning or swinging ofthe reproducer causes the member 12 to assume a vertical position andthe arm 13 a horizontal position and the notch and toothed end of themember 13 are interlocked and held in said position. When the reproduceris swung down to bring the needle on the record, the member 12 is in ahorizontal position and the arm13 in a vertical position, as shown inFig. 1.

Having thus described my invention, what I claim and desire to secure byLetters Patent is:

1. The combination with a reproducer comprising a needle and a record,of means carried by the reproducer for automatically frictionallyengaging the record and raising the needle and stopping the record.

2. The combination with a reproducer and a record, means carried bythereproducer for raising the needle from the record and stopping therecord and a projection carried by the record and adapted to trip saidmeans.

3. The combination with a reproducer and a record, means carried by thereproducer for engaging the record and raising the reproducer andstopping the record, and a projection carried by the record and adaptedto trip said means.

4. The combination with a reproducer and a record, means carried by thereproducer for automatically engaging the record and first raising theneedle from the record and then stopping the rotation of the record.

5. The combination with areproducer and a record, a pivoted membercarried by the reproducer and normally held in a horizontalposition, and2. lug carried by the record and adapted to trip said member to allow itto drop on the record and raise the needle from the record and stop themachine.

6. The combination with a reproducer and a record having a lug on theinside of the sound grooves, a pivoted member carried adjusted position,and said trigger having its lower end above the record and in the pathof said lug.

8. The combination of a reproducer and a disk record, having a lug onthe inside of the sound groove, of an attachment adapted to be securedto the reproducer and engaged by the lug carried by the record toautomatically raise the needle from the record and stop it.

9. The combination with a record and reproducer, a member carried by thereproducer, and a trigger for releasing said member and allowing it todrop upon the record and raise the needle and stop the record.

10. The combination with a reproducer and a disk record having a lug onthe inside of the sound groove, of means carried by the reproducer andreleased by the lug for raising the reproducer and stopping the record,said means being automatically set when the reproducer is swung aroundto bring a new stylus in operative position, and said means comprising aplate removably secured to the sound box, a member intermediatelypivoted to the said plate, a

rubber covering for the lower end of said member, a trigger pivoted tothe plate and having a notch intermediate its ends to receive the upperend ofthe member, and a nipple screwed upon the lower end of the triggerfor varying the length thereof, said trigger adaptedto lock the memberin a horizontal position.

11. The combination with a reproducer and a record having a lug on theinside of the sound groove, an intermediately pivoted member carried bythe sound box, a pivoted trigger or arm adapted to engage the inner endof said member and lock it in a horizontal position above the record,and said trigger having its lower end above the record and in the pathof said lug and means for preventing the interm'ediately pivoted memberfrom passing a vertical position.

7 12. The combination with a reproducer and a record having a lug on theinside of the sound grooves, a plate secured to the inner face of thesound box, an intermediately pivoted member carried by the lower innerend Ed said memher and lock it in a trigger having its lower end abovethe record and in the path of the said lug, and

means for preventing the intermediatelypivoted member from passing avertical po sition. d

13. The combination with a reproducer and a record, an intermediatelypivoted member carried by the sound box, a pivoted triggeror arm adaptedto engage theinner end of said member and lock it in a horizontalposition,'said trigger having a vertically adjustable lower end, andmeans carried by the record for enga ing the trigger and tripping theinterme iately pivoted member, substantially as shown and described.

14. The combination with a reproducer and a record, a plate removablysecured to the reproducer, an intermediately pivoted member carried bythe lower end of said plate and having a notched inner end, a pivotedvertically disposed trigger or arm having an offset portion engaging thenotched end of the member to lock it in a horiz'ontal position above therecord, said trigger having its lower and above the recthe direction therecord swings 0rd, a lug carried by the record and adapted to enga e thelower end of the trigger, and allow t e intermediately pivoted member todrop down upon the record and raise the reproducer, and means for.preventing said member from passing a vertical position in 15. Thecombination with the ordinary reproducer and record, of an attachmentcomprising a pivoted arm ada ted to enga e the record and raise the nee1e and stop t e record. I

- 16. The combination with the ordinary reproducer and-record, of anattachment removably secured to the. reproducer, said attachmentcomprising a plvoted member, a trigger for holding said member in itsraised position, means carried by the record for operating the triggerto allow the member to drop and engage the record for raising the needleand stopping the record.

In testimonywhereof Ihereunto aflix my signature in the presence of twowitnesses.

MINARD ARTHUR POSSONS.

